Question

Find x.
Round to the nearest tenth.
7cm
7cm
10 cm
x = [? ]cm

Answer 1

x = 4.9

Explanation:

We can use the intersecting chords formula:

(segment piece) x (segment piece) = (segment piece) x (segment piece)

7*7 = 10x

49 = 10x

Divide each side by 10

49/10=10x/10

4.9 = x

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